I'm on a T-Mobile Voicemail unlocked using an AT&T sim and I can't get YouMail to work. When I try to activate it for forwarding to their service, the mmi code is started but I get a pop up saying "connection problem or invalid mmi code." Anyone know of a fix? I have tried quite a few things but it still doesn't work.
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Anyone have any idea?
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sms can be received. web surfing and phone calling is fine as well. can anyone help me?
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piercewei said:
sms can be received. web surfing and phone calling is fine as well. can anyone help me?
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You might need to enter the correct service center number. Call your operator.
Had a similar problem, couldn't receive sms, but could send. Was advised to get a newer sim card (mine was 5 years old) and to do a master reset on the phone. Worked for me. Reseting sucks.
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batman_112 said:
You might need to enter the correct service center number. Call your operator.
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i did call my operator. at first, they gave me a sms center no. but i couldn't find the setting to enter the no. then i called again and was advised to call se service centre for help. my phone is an unlocked Germany version while i live in China. so i wasn't given a spefic answer. they just said the sim card was recognised by the phone automatically so normally changing sim card won't cause any problem.
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master reset is factory reset?
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Yes.
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Report back if that worked. I'm curious.
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No SIM, Wifi calling, possible? I pulled the sim card out of my unlocked, rooted vibrant...fired up the stock WiFi calling. It responded with invalid SIM...what does T-Mobile have to do with my wireless network? Do we have to unlock the app too?
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You have to have your sim card in for it work. Did you try it with the sim card in??
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Well it said something about using minutes...so I thought what be the point...when I could just use the phone anyways...could someone give me an example where I'd be where I'd have WiFi and no cell coverage?
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If you're in a basement or solid building where signal can't penetrate, use wifi to make calls instead. Still uses your minutes, you just get a consistently strong signal instead of dropping the call
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Gotchya...thanks
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Wifi calling uses the account information on your SIM card to call people. If you have no SIM card, then you have no account with T-Mobile, making their app useless.
I'm on AT&T and just got the phone yesterday. Data and voice works. I checked the message center number ( 13123149810) and it looks correct.
Any advice?
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Just got with att and they removed my texting plan when I had them upgrade my plan to 4g
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Never had this issue before upgrading to Flappjaxx aosp of JB, but i cannot seem to use Youmail visual voice mail. It uses Mmi *004* but my phone now says invalid. Anything im missing here?
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An mmi error means there is a problem with your imei code in att's system. Call att and get it fixed
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OK I'm running the new 5.0.1 y5 rom on sprint Max . Carrier says I'm DSU but I tried a deactivated metro PC sim and get error LTE uicc sim incorrect .
Looking to try another sim . But in the mean time is there any way of checking the sim status . Via app or fastboot... Also my epst dialer is not working in this rom so I can't really get in to programming at the moment . But will like to verify . Thanks in advance .
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Confirmed but still no sim to test with
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Bump
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